Line marking gauge



FIG. 1 is a top, front, and right side perspective view of a linemarking gauge showing my new design;

FIG. 2 is a bottom plan view;

FIG. 3 is a rear elevational view;

FIG. 4 is a left side elevational view; and

FIG. 5 is an enlarged fragmentary cross-sectional view thereof, takenalong line 5--5 of FIG. 4.

The ornamental design for a line marking gauge, as shown.